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In domains such as finance, healthcare, and robotics, managing worst-case scenarios is critical, as failure to do so can lead to catastrophic outcomes. Distributional Reinforcement Learning (DRL) provides a natural framework to incorporate…

机器学习 · 计算机科学 2026-02-13 Mehrdad Moghimi , Hyejin Ku

Well-mixed chemical reaction networks (CRNs) contain many distinct chemical species with copy numbers that fluctuate in correlated ways. While those correlations are typically monitored via Monte Carlo sampling of stochastic trajectories,…

统计力学 · 物理学 2026-01-14 John P. Zima , Schuyler B. Nicholson , Todd R. Gingrich

In this paper, we consider the stability analysis of large-scale distributed networked control systems with random communication delays between linearly interconnected subsystems. The stability analysis is performed in the Markov jump…

系统与控制 · 计算机科学 2015-11-13 Kooktae Lee , Raktim Bhattacharya

In this work, we study the dynamical robustness in a system consisting of both active and inactive oscillators. We analytically show that the dynamical robustness of such system is determined by the cross link density between active and…

适应与自组织系统 · 物理学 2017-03-01 Wenwen Huang , Xiyun Zhang , Xin Hu , Zonghua Liu , Shuguang Guan

Interconnected networks describe the dynamics of important systems in a wide range such as biological systems and electrical power grids. Some important features of these systems were successfully studied and understood through simplified…

系统与控制 · 计算机科学 2016-03-18 Thanh Long Vu , Konstantin Turitsyn

Inferring tie strengths in social networks is an essential task in social network analysis. Common approaches classify the ties as wea} and strong ties based on the strong triadic closure (STC). The STC states that if for three nodes, $A$,…

社会与信息网络 · 计算机科学 2024-01-17 Lutz Oettershagen , Athanasios L. Konstantinidis , Giuseppe F. Italiano

We focus on power-law coherency as an alternative approach towards studying power-law cross-correlations between simultaneously recorded time series. To be able to study empirical data, we introduce three estimators of the power-law…

统计金融 · 定量金融 2018-10-30 Ladislav Kristoufek

This paper presents communication-constrained distributed conformal risk control (CD-CRC) framework, a novel decision-making framework for sensor networks under communication constraints. Targeting multi-label classification problems, such…

信号处理 · 电气工程与系统科学 2025-02-25 Meiyi Zhu , Matteo Zecchin , Sangwoo Park , Caili Guo , Chunyan Feng , Petar Popovski , Osvaldo Simeone

The structure of many financial networks is protected by privacy and has to be inferred from aggregate observables. Here we consider one of the most successful network reconstruction methods, producing random graphs with desired link…

物理与社会 · 物理学 2024-03-21 Andrea Gabrielli , Valentina Macchiati , Diego Garlaschelli

Statistical uncertainty of different filtration techniques for market network analysis is studied. Two measures of statistical uncertainty are discussed. One is based on conditional risk for multiple decision statistical procedures and…

统计金融 · 定量金融 2015-06-17 V. A. Kalyagin , A. P. Koldanov , P. A. Koldanov , P. M. Pardalos , V. A. Zamaraev

The inference of an underlying network topology from local observations of a complex system composed of interacting units is usually attempted by using statistical similarity measures, such as Cross-Correlation (CC) and Mutual Information…

数据分析、统计与概率 · 物理学 2014-09-03 Nicolás Rubido , Arturo C. Martí , Ezequiel Bianco-Martínez , Celso Grebogi , Murilo S. Baptista , Cristina Masoller

In this paper, we demonstrate the fragility of decentralized load-side frequency algorithms proposed in [1] against stochastic parametric uncertainty in power network model. The stochastic parametric uncertainty is motivated through the…

最优化与控制 · 数学 2017-02-20 Sai Pushpak , Umesh Vaidya

We propose a framework combining detrended fluctuation analysis with standard regression methodology. The method is built on detrended variances and covariances and it is designed to estimate regression parameters at different scales and…

统计金融 · 定量金融 2018-10-30 Ladislav Kristoufek

We develop a novel stress-test framework to monitor systemic risk in financial systems. The modular structure of the framework allows to accommodate for a variety of shock scenarios, methods to estimate interbank exposures and mechanisms of…

风险管理 · 定量金融 2016-02-23 Stefano Battiston , Marco D'Errico , Stefano Gurciullo , Guido Caldarelli

A vast variety of biological, social, and economical networks shows topologies drastically differing from random graphs; yet the quantitative characterization remains unsatisfactory from a conceptual point of view. Motivated from the…

分子网络 · 定量生物学 2010-03-11 Jens Christian Claussen

Robust diffusion adaptive estimation algorithms based on the maximum correntropy criterion (MCC), including adaptation to combination MCC and combination to adaptation MCC, are developed to deal with the distributed estimation over network…

机器学习 · 统计学 2016-02-04 Wentao Ma , Badong Chen , Jiandong Duan , Haiquan Zhao

Tensor-based multi-view clustering has recently received significant attention due to its exceptional ability to explore cross-view high-order correlations. However, most existing methods still encounter some limitations. (1) Most of them…

计算机视觉与模式识别 · 计算机科学 2024-11-13 Deng Xu , Chao Zhang , Zechao Li , Chunlin Chen , Huaxiong Li

The number of algorithms available to reconstruct a biological network from a dataset of high-throughput measurements is nowadays overwhelming, but evaluating their performance when the gold standard is unknown is a difficult task. Here we…

分子网络 · 定量生物学 2012-09-11 Giuseppe Jurman , Michele Filosi , Roberto Visintainer , Samantha Riccadonna , Cesare Furlanello

In the last decade, the demand for Internet applications has been increased, which increases the number of data centers across the world. These data centers are usually connected to each other using long-distance and high-speed networks. As…

网络与互联网体系结构 · 计算机科学 2019-05-01 Mohamed A. Alrshah , Mohamed A. Al-Maqri , Mohamed Othman

This paper proposes a flexible framework for inferring large-scale time-varying and time-lagged correlation networks from multivariate or high-dimensional non-stationary time series with piecewise smooth trends. Built on a novel and unified…

统计方法学 · 统计学 2023-02-13 Lujia Bai , Weichi Wu